App: Profile → My Identity → Contact
Website: After login, click top right hand corner to access your profile, then clicks “change” next to mobile number or email.

App版登入:
進入個人帳戶後,選擇「我的身份」, 點擊「聯絡資料」修改。
網頁登入:
點選右上角個人頁面,在流動電話號碼或電郵旁按修改。

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